Illustrated manuscripts are handwritten books that feature decorative images alongside the text. These artworks often include intricate designs, vibrant colors, and detailed illustrations that enhance the written content. They were commonly produced during the Middle Ages and the Renaissance, serving both religious and secular purposes. The creation of illustrated manuscripts involved skilled artisans known as illuminators who used materials like parchment and gold leaf to create their works. Notable examples include the Book of Kells and the Codex Manesse, which showcase the artistic styles and cultural significance of their time.